Hi Herlucyness (Lucy is my cat's name

),
I agree that you should get it checked... by a dermatologist not a general doc.
I've had a similar experience twice. The first time was the same as the last post, a mole that kept getting rubbed by my bra. I had it removed just to aleviate the irritation. Then I had a totally normal looking mole (in a different place) that got a tiny raised portion in the middle. The skin over all of it peeled once or twice. I wondered about it, but chalked it up to dry skin. After all, it still looked totally normal. It was melanoma, very early, Stage 1b, but melanoma nonetheless.
No, I do not think you should worry at all because most things like this are completely fine. I just think you should be cautious and safe. Good luck, and please let us know how you are.